Iscar 5508073 DCMT31PF IC8250 Turning Insert 3/8 Inch Ic

Product Description

The ISCAR 5508073 is a solid carbide turning insert in the DCMT31PF geometry, part of the Isoturn series. It carries a multilayer PVD coating of TiCN, Al2O3, and TiN under the IC8250 manufacturer grade, delivering the wear resistance and edge stability required for productive turning of stainless steel and carbon steel. The insert measures 11.6 mm (0.457 inches) in length with a 3/8-inch inscribed circle, a 1/64-inch corner radius, and a 5/32-inch thickness. The positive rake geometry and PF chip breaker promote free cutting action and reliable chip control in finishing and light-roughing passes.

This insert is suited for external and internal turning operations on CNC lathes in job-shop and production environments. Its primary workpiece material ratings cover stainless steel (ISO M) and steel (ISO P), making it a practical choice for shops running mixed material schedules. The screw-clamping hold method (DCMT style) provides secure seating in standard DCMT-compatible toolholders. Maximum depth of cut is 3.00 mm (0.118 inches), positioning this insert in the finishing-to-medium-cut range.

Key Features

• IC8250 grade with PVD-applied TiCN, Al2O3, and TiN multilayer coating for extended tool life on steel and stainless
• 55-degree diamond (D) insert shape with 7-degree relief angle (clearance code C) for versatile turning profiles
• 1/64-inch corner radius minimizes surface roughness in finishing applications
• PF chip breaker geometry for positive rake, controlled chip evacuation
• Screw-clamp holding method with 0.1732-inch hole diameter for rigid toolholder engagement
• Compliant with ISO 13399 standard for tooling data representation

Compatibility

Designed as an OEM-style replacement insert for DCMT-style screw-clamp turning toolholders accepting a 3/8-inch inscribed circle insert; verify toolholder pocket specifications before installation.

Installation Notes

Turning inserts are installed and indexed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before changing inserts. Use the correct Torx or hex key to seat the clamping screw evenly — do not over-drive. Inspect the toolholder pocket for wear or debris before seating the new insert, and confirm tool overhang and depth-of-cut settings match the 3.00 mm maximum cut rating for this insert.